Joseph Harrington is a planetary scientist working at the University of Central Florida's Planetary Science Group.

Dr. Harrington began observing and modeling giant planets as an undergraduate at MIT. His pre-impact model of the collision of comet Shoemaker-Levy 9 with Jupiter in 1994 was published on the cover of Nature and sparked the worldwide media spree surrounding that event. Dr. Harrington then held a National Research Council Fellowship at the NASA Goddard Space Flight Center, during which he modeled the aftermath of the Shoemaker-Levy 9 impact and also identified the majority of planetary waves known on planets other than Earth. From 1997 to 2006, he worked as a staff scientist at Cornell University, where his interests shifted to observing extrasolar planets. He was part of the team that first measured light from an extrasolar planet, a result published in Nature in April 2005.

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